From the course: Cisco CCNP SCOR Security (350-701) Cert Prep: 1 Security Concepts and Network Security

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NTP with authentication

NTP with authentication

- [Instructor] Let's take a look at NTP authentication now. I have a very simple topology that you can see here, just a single server that's providing NTP, and I have a router connected to that. If we take a quick look at the server settings you can see that I have enabled NTP here at the top. You can see that I have also enabled authentication with key number one and a very simple password of cisco. If we go to our router and at the moment if we say show clock you'll see that the date and time is way off on this router at the moment. So, let's take care of that. Notice also the asterisk at the beginning of this clock output, and that indicates that the time is not authoritative, or in other words, we aren't getting our time settings from a guaranteed accurate device. In fact, if we say show clock detail this will tell us that the time source is the actual hardware calendar, the local clock. We want all of our devices to be synchronized together if we're going to be able to correlate…

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